Notification.permission's default value of "default" should be testable.

Notification.permission's default value of "default" should be testable.

If no permission request has been answered yet, the Notification.permission
string of the Web Notification API should be set to "default". The
presenter used for testing can currently only return "allowed" or "denied".

BUG=349015
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=256273

[Peter Beverloo, 2014-03-04 15:39:43]

This is to support "notifications-permission-values.html" of the new tests:
  https://codereview.chromium.org/186713002

It's backwards compatible with the remaining existing tests.

[Andrew T Wilson (Slow), 2014-03-04 21:54:24]

lgtm

[pfeldman, 2014-03-05 15:14:57]

rslgtm

[Peter Beverloo, 2014-03-05 15:26:19]

The CQ bit was checked by peter@chromium.org

[commit-bot: I haz the power, 2014-03-05 15:26:47]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/peter@chromium.org/183663021/20001

[Peter Beverloo, 2014-03-05 15:40:12]

The CQ bit was unchecked by peter@chromium.org

[Peter Beverloo, 2014-03-11 14:20:22]

The CQ bit was checked by peter@chromium.org

[commit-bot: I haz the power, 2014-03-11 14:20:48]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/peter@chromium.org/183663021/40001

[commit-bot: I haz the power, 2014-03-11 17:56:59]

Change committed as 256273